import GremlinProvider from './GremlinProvider';
export default class DBUpgrader {
    private gremlinProvider;
    private dbMetadata;
    private scriptMetadata;
    private log;
    private commonScriptContents;
    constructor(gremlinProvider: GremlinProvider, dbMetadata: any, scriptMetadata: any);
    upgradeToLatest(context?: any): Promise<unknown>;
    dispose(): void;
    private upgradeUsingFiles;
    private startTransactionExplicitly;
    private wrapWithVersionUpdateToContents;
}